Trace Sulfur Analyzer Models 4025/4425 GC Engineered Solutions

P R O D U C T
B R I E F
GC Engineered Solutions
Trace Sulfur Analyzer
Models 4025/4425
• Analysis: refinery gas, natural gas, process gas, and Kraft gas
• Uses a sulfur chemiluminescence detector (SCD) • The SCD features an equimolar response to sulfur
compounds, lack of carbon interference and requires simple calibration
Key Features
• Meets: ASTM D5504
• Guaranteed detection levels (based on individual components
without interference from neighboring peaks):
SCD
Min (ppb)
All sulfur compounds
10
• Capillary-column solution
• Sample types analyzed: Gas
Ethyl Mercaptan
• Model 4425 includes permeation-tube calibration chamber
Detected Compounds
1.0
2.0
3.0
4.0
Dimethyl Sulfide
Methyl Mercaptan
Carbonyl Sulfide
• Permeation tube chamber can accommodate up to four permeation tubes or wafers for calibration of other
non-sulfur compounds
Sulfur Dioxide
• Manual valve is used to select the calibration chamber or
the sample input
Hydrogen Sulfide
• Mounts on top of the analyzer for easy access
5.0
6.0
7.0
8.0
SCD channel, with cryogenics (concentration of DMS ~390 ppb)
• Hydrogen sulfide (H2S), carbonyl sulfide (COS), sulfur dioxide (SO2) (cryogenic cooling required for COS/SO2 separation), mercaptans, aromatic sulfur
compounds, sulfides
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Dimethyl Disulfide
• Can be designed to be online and/or a multistream system
Propyl Mercaptan
• Can be modified with a second or third channel to perform additional analyses (custom solution)
9.0
10.0